@conference {18239,
	title = {High order Ambisonics encoding method using differential microphone array},
	booktitle = {144 AES Convention},
	year = {2018},
	pages = {10020},
	address = {Milan Italian},
	url = {http://www.aes.org/tmpFiles/elib/20181106/19852.pdf},
	author = {Shan Gao and Xihong Wu and Tianshu Qu}
}
